The reduction of abrasive wear and extension of the endurance of pumps requires a system analysis. Various pump types demonstrate different tribological systems under abrasive wear, which are basically dominated by sliding, jet, and stamping wear types. The morphological approach yields an understanding of why wear attacks have to be considered predominantly. Chances and limitations for wear and endurance prediction based on tribometric simulation are discussed. As quantitative prediction is not always possible, the method of relative suitability turns out to be a good tool. As experience shows predominant jet and sliding wear in pumps, these two wear types are discussed closer. A good example for a tribological system dominated by sliding wear is the progressing cavity pump. Several tribological simulations, including parameter studies are discussed, evaluated, and compared that demonstrate strategies for pump improvements. Jet wear dominated tribological systems are special clearances in rotary pumps that are discussed with respect to wear phenomena and tribological simulation. Furthermore, methods of wear prediction for centrifugal pumps in general, based on parameter studies with jet tribometers, are explained.
展开▼
